Brush fire closes I-15 lanes

The fire began in several spots along the right shoulder of the freeway. A Sig Alert was issued at 4:40 p.m., and all southbound lanes were closed as crews extinguished flames that had spread to the center divide.

As of 4:50 p.m., two southbound lanes and one northbound lane remained shut down as smoke blew across the highway.

The cause of the fire is not yet known. No structures are threatened, and the fire is holding at about 6 acres.